Method

In stand mixer with paddle attachment, or in bowl using wooden spoon, beat together butter, icing sugar, vanilla and salt until light and fluffy; stir in flour just until combined.

Press dough into parchment paper– lined 9-inch (2.5 L) square cake pan. Using palm of hand, flatten to make smooth, even surface. Sprinkle with granulated sugar. Using knife, score surface of dough into 24 rectangles; prick each cookie several times with fork. Refrigerate until firm, about 30 minutes.

Bake in 300 F (150 C) oven until firm and pale golden, about 55 minutes. Let cool for 5 minutes; cut through score lines. Let cool completely in pan. (Make-ahead: Store in airtight container for up to 1 week or freeze for up to 1 month.)

Spinach and Artichoke Pissaldière

Pissalidière, a flaky pizza-like tart, is traditionally topped with onions, anchovies and, at times, tomatoes. Here, we've swapped out the anchovies for artichokes to make these bites even more crowd-pleasing, and we've added spinach for a stunning pop of colour.

Method

On parchment paper–lined rimless baking sheet, unroll 1 sheet of the pastry. Top with half each of the onion mixture, artichokes, sun-dried tomatoes and spinach. On separate baking sheet, repeat with remaining pastry, onion mixture, artichokes, sun-dried tomatoes and spinach. Bake, 1 sheet at time, in 425°F oven until edges are golden, 18 to 20 minutes. Cut each sheet into 16 squares.

Tip from The Test Kitchen: If the onion begins to stick to the skillet, add up to a tablespoon of water, a little at a time.

Method

While potatoes are cooking, in Dutch oven or large heavy-bottomed saucepan, heat half of the olive oil over medium- high heat; cook sausage, stirring occasionally, until browned all over, about 2 minutes. Scrape into bowl. Set aside.